Nanoparticle substances and nanoparticles for use in industry, science and research, namely, silicon; silicon for use in industry, science and research; silicon nanoparticle materials for use in industry, science and research; porous silicon nanoparticle materials for use in industry, science and research; lipid nanoparticles for use in industry, science and research; silicon-lipid nanoparticles for use in industry, science and research; silicon-stabilised hybrid lipid nanoparticles for use i...